4: Friends are Flowers that Never Fade | breathing.. when u breath u create a pressure between lungs and outside body. when you inhale,diaphram and muscles between your ribs. expanding your chest cavity and your lungs. when lungs expand the pressure outside your body.

6: asthma.. an inflammatory condition in which the trachea, bronchi and bronchioles, became. you cant prevent asthma. you can prevent attacks by staying away from anything that triggers it. asthma is just a gene you have. exercise can reduce asthma.

7: if you don't treat asthma attacks breathing will become more labored and wheezing will be more louder.